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Author Vera, J. pdf  doi
openurl 
  Title (up) An Agent-Based Model for the Role of Short-Term Memory Enhancement in the Emergence of Grammatical Agreement Type
  Year 2018 Publication Artificial Life Abbreviated Journal Artif. Life  
  Volume 24 Issue 2 Pages 119-127  
  Keywords Short-term memory; grammatical agreement systems; language games; language evolution  
  Abstract What is the influence of short-term memory enhancement on the emergence of grammatical agreement systems in multi-agent language games? Agreement systems suppose that at least two words share some features with each other, such as gender, number, or case. Previous work, within the multi-agent language-game framework, has recently proposed models stressing the hypothesis that the emergence of a grammatical agreement system arises from the minimization of semantic ambiguity. On the other hand, neurobiological evidence argues for the hypothesis that language evolution has mainly related to an increasing of short-term memory capacity, which has allowed the online manipulation of words and meanings participating particularly in grammatical agreement systems. Here, the main aim is to propose a multi-agent language game for the emergence of a grammatical agreement system, under measurable long-range relations depending on the short-term memory capacity. Computer simulations, based on a parameter that measures the amount of short-term memory capacity, suggest that agreement marker systems arise in a population of agents equipped at least with a critical short-term memory capacity.  
  Address [Vera, Javier] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago, Chile, Email: jxvera@gmail.com  
  Corporate Author Thesis  
  Publisher Mit Press Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1064-5462 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000431302900003 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 853  
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Author Vera, J. pdf  doi
openurl 
  Title (up) Self-Organization of Vocabularies under Different Interaction Orders Type
  Year 2017 Publication Artificial Life Abbreviated Journal Artif. Life  
  Volume 23 Issue 2 Pages 287-294  
  Keywords Vocabulary; automata networks; interaction orders; naming game  
  Abstract Traditionally, the formation of vocabularies has been studied by agent-based models (primarily, the naming game) in which random pairs of agents negotiate word-meaning associations at each discrete time step. This article proposes a first approximation to a novel question: To what extent is the negotiation of word-meaning associations influenced by the order in which agents interact? Automata networks provide the adequate mathematical framework to explore this question. Computer simulations suggest that on two-dimensional lattices the typical features of the formation of word-meaning associations are recovered under random schemes that update small fractions of the population at the same time; by contrast, if larger subsets of the population are updated, a periodic behavior may appear.  
  Address [Vera, Javier] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Avda Diagonal Las Torres 2640, Santiago, Chile, Email: jxvera@gmail.com  
  Corporate Author Thesis  
  Publisher Mit Press Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1064-5462 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000402704800008 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 738  
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